52 BYZANTINE CHURCHES CHAP. cloisters behind the colonnades, were connected at their west end with the narthex by two large and elaborately moulded doorways still in position. Five doors lead from the narthex into the church ; three opening into the nave, the others into the aisles. The interior of the church, now almost a total ruin, was divided into nave and two aisles by colonnades of seven columns of verd antique marble. But only six of the original columns have survived the injuries which the building has sustained; the other columns are Turkish, and are constructed of wood with painted plaster covering. The colonnades supported an entablature of late Corinthian type, which, as the fall of the Turkish plaster that once covered it has revealed, had the same moulding as the entablature in the narthex. The architrave was in three faces, with a small bead ornament to the upper two, and finished above with a small projecting moulding. The frieze was an ogee, bellied in the lower part. Of the cornice only the bed mould, carved with a leaf and tongue, remains. Above each colonnade stood another range of seven1 columns connected, probably, by arches. Along the northern, southern, and western sides of the church were galleries constructed of wood. Those to the north and south still exist in a ruined condition, and many of the stone corbels which supported the beams remain in the walls. Only scanty vestiges of the gallery above the narthex can be now distinguished. Its western wall, the original outer wall of the upper part of the church, has totally disappeared. Its eastern arcade has been replaced by the Turkish wall which constitutes the present outer wall of that part of the church. But beyond either end of that wall are visible, though built up, the old openings by which the gallery communicated with its companion galleries ; while to the west of the wall project the ragged ends of the Byzantine walls which formed the gallery's northern and southern sides. The nave rose probably to a greater height than it does now, and had a roof at a higher level 1 GylHus says six.